Hi Joe,
These are probably the most widely circulated DIY aquarium food mixes:
Here's a link to Marc Levenson's recipe
http://www.melevsreef.com/food.html
and here's one to Eric Bourneman's
http://forum.marinedepot.com/FindPost20131.aspx
BTW: I believe Eric refers to using a blender in this post. Later in
the discussion thread he confirmed that he actually uses a food
processor. Here's a link to the whole thread:
http://forum.marinedepot.com/Topic20086-9-1.aspx
The main thing I take from reading these is that one shouldn't be
afraid to add, subtract, substitute, and modify according to the
specific animals in your tank and the availability of ingredients.
Nutritiously yours,
Alex